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Dehydration in children

Dehydration can occur when the body loses too much water.

Symptoms of severe dehydration

  • A lack of interest in playing and extreme sleepiness. (The child may be so sleepy that he or she is difficult to wake up.)
  • A dry mouth and tongue
  • A sunken soft spot (fontanel) on top of the head
  • Sunken eyes without tears
  • Fast breathing and rapid heartbeat
  • No urination (a dry diaper) for more than 12 hours

Severe dehydration is a medical emergency. Call 911 or other emergency services immediately.

Symptoms of moderate dehydration

  • A decreased interest in play
  • A sunken soft spot (fontanel) in the head
  • Sunken eyes with few tears
  • A dry mouth, with little or no saliva
  • Extreme hunger or thirst
  • No urination for 8 hours or fewer than 3 urinations (fewer than 3 wet diapers) in 24 hours

Symptoms of mild dehydration

  • Irritability, agitation, fussiness, or restlessness
  • Hungry or thirsty most of the time
  • Less frequent urinations than usual or needs fewer diaper changes. The child's urine will have a stronger odor and be darker yellow than normal.
Author Jan Nissl, RN, BS
Editor Susan Van Houten, RN, BSN, MBA
Editor Sydney Youngerman-Cole, RN, BSN, RNC
Associate Editor Tracy Landauer
Primary Medical Reviewer William M. Green, MD
- Emergency Medicine
Specialist Medical Reviewer H. Michael O'Connor, MD
- Emergency Medicine
Last Updated July 6, 2007

WebMD Medical Reference from Healthwise

Last Updated: July 06, 2007
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.